Category:Organizations established in 1820
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| Organizations established by year | 1817 1818 1819 1820 1821 1822 1823 |
| Years | 1817 1818 1819 1820 1821 1822 1823 |
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This category has only the following subcategory.
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Pages in category "Organizations established in 1820"
The following 7 pages are in this category, out of 7 total.
